Shoe midsole



FIG. 1 is a front perspective view of a shoe midsole showing my new design;

FIG. 2 is a side view thereof; and,

FIG. 3 is a rear perspective view thereof.

The broken lines showing the remainder of the shoe midsole are for environmental purposes only and form no part of the claimed design. 

CLAIM The ornamental design for a shoe midsole, as shown and described. 